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                            <b>1.</b>
                        
                        什么是函数
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                        函数的基本使用
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                        函数的参数
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                            <b>4.</b>
                        
                        函数的返回值
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                        函数练习
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                            <b>7.</b>
                        
                        函数调用函数
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                            <b>8.</b>
                        
                        函数高级
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                        局部变量和全局变量
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                            <b>8.2.</b>
                        
                        函数返回值详解
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                            <b>8.3.</b>
                        
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                        可变数据类型和不可变数据类型
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<pre><code class="lang-python"><span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">testB</span><span class="hljs-params">()</span>:</span>
    print(<span class="hljs-string">&apos;---- testB start----&apos;</span>)
    print(<span class="hljs-string">&apos;&#x8FD9;&#x91CC;&#x662F;testB&#x51FD;&#x6570;&#x6267;&#x884C;&#x7684;&#x4EE3;&#x7801;...(&#x7701;&#x7565;)...&apos;</span>)
    print(<span class="hljs-string">&apos;---- testB end----&apos;</span>)

<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">testA</span><span class="hljs-params">()</span>:</span>
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testA()
</code></pre>
<p>&#x7ED3;&#x679C;&#xFF1A;</p>
<pre><code>---- testA start----
---- testB start----
&#x8FD9;&#x91CC;&#x662F;testB&#x51FD;&#x6570;&#x6267;&#x884C;&#x7684;&#x4EE3;&#x7801;...(&#x7701;&#x7565;)...
---- testB end----
---- testA end----
</code></pre><h3 id="&#x5C0F;&#x603B;&#x7ED3;&#xFF1A;">&#x5C0F;&#x603B;&#x7ED3;&#xFF1A;</h3>
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<li>&#x5982;&#x679C;&#x51FD;&#x6570;A&#x4E2D;&#xFF0C;&#x8C03;&#x7528;&#x4E86;&#x53E6;&#x5916;&#x4E00;&#x4E2A;&#x51FD;&#x6570;B&#xFF0C;&#x90A3;&#x4E48;&#x5148;&#x628A;&#x51FD;&#x6570;B&#x4E2D;&#x7684;&#x4EFB;&#x52A1;&#x90FD;&#x6267;&#x884C;&#x5B8C;&#x6BD5;&#x4E4B;&#x540E;&#x624D;&#x4F1A;&#x56DE;&#x5230;&#x4E0A;&#x6B21; &#x51FD;&#x6570;A&#x6267;&#x884C;&#x7684;&#x4F4D;&#x7F6E;</li>
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